Separation and Recovery of Valuable Metals from Automobile Shredder Residue (ASR) Fly Ash by Wet Processing

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概要

• 論文の詳細を見る

• The amount of automobile shredder residue (ASR) reaches 0.6-0.7 million tons per year in Japan, approximately. One of the effective processes to reduce the amount of ASR was the incineration process, generally carried out in smelting and refining plant. During the process, however, large amounts of ASR fly ash containing chloride (Cl) compounds and some valuable metals (e.g. copper, zinc) were produced. In this contribution, the recycling of copper, zinc and Ca/Na chloride compounds from ASR fly ash was investigated by using a process consisting of cementation, sulfide precipitation and distillation. The experimental results showed that high-grade copper (metal and oxide) and zinc (sulfide) were separated with recovery rate >97% from the HC1 washing solution of ASR fly ash by cementation and precipitation. CaCl2･9H2O and NaCl were obtained from the washing solution of ASR fly ash by vacuum distillation.

• 秋田大学の論文

著者

• TAKASAKI Yasushi

  Akita University

• SHIBAYAMA Atsushi

  Akita University SVBL

• OTOMO Takaho

  Akita University

• Shibayama Atsushi

  Venture Business Laboratory Akita University

• Shibayama Atsushi

  Akita University

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